Starting with 7.6 version adds the ability to go and play on the server without anticheat with limited rights. Only for gaming on the engine GoldSource (HL1). Added tag [NO-UCP] on to Players without anticheat, and they can do damage only just to no-ucp players, players with anticheat for them immortal. Also at the beginning of each round displayed a message saying that you need to install anti-cheat for a full game.